Gas-heater.



R. E. CAMPBELL.

GAS HEATER. APPLICATION FILED JAN- 26, IQIG- 1,232,457. Patented July 3, 1917.

WITN ESSES:

I INVENTOR erLE fiampbell.

ROBERT E. CAMPBELL, 0F BERKELEY, CALIFORNIA.

GAS-HEATER.

Application filed January 26, 1916.

To all whom it may concern:

Be it known that I, ROBERT E. CAMPBELL, a citizen of the United States, residing at Berkeley, in the county of Alameda and State of California, have invented new and useful Improvements in Gas-Heaters, of which the following is a specification.

his invention The ob]ect of the present invention is to erator without the odors usually produced.

he in lention consists of the igure 1 1s a central vertical section through the heater.

Fi 2 is a plan view of same.

Re erringv to the drawings in detail, A indicates a horizontally positioned pipe se cured in a me One end of the pipe 13 connected by a hose 3 with a suitable source. of gas supply, While the other end is closed by the bracket Mounted in the bracket 2 in alinement with a discharge orifice 4 formed in pipe A in a vertical position and in direct alinement with the orifice is a mixin tube 5. The lower end of this "tube is pre erably screwed into the bracket 2 and it is therefore possile to raise and, lower the tube or to adjust the tube verticall with relation to the discharge orifice. ischarge of orifice shown produces a nozzle draws air in through the of arrows at. A comparatively perfect mixture of air and gas is thus obtained, which, when ignited, produces a flame approximately of the shape shown at 6. A burner constructed as here shown, operates on the Bunsen principle. The flame 6 produced by the mixture of air and 1gas passlngthrough the tube 5 is blue in co or and produces an intense heat. The combustion of the gas and air mixture discharging, is however, not perfeet, as a considerable quantity of unconsumed gas escapes from the flame, an unnecessary odor and waste, wh1cl i, 1n this instance, is obviated by the (provision of a secondary combustion tube in icated at B. The lower end of this tube is preferably Specification of Letters Patent.

relates to a gas heater.

tangular shaped open bracket tube in direction 16 w causing Patented 'July 3, 1917; Serial No. 74,354.

enlarged and cone-shaped as at 7 and is positioned vertically in direct alinement with the mixing tube 5. It is preferably mounted in the position shown or far above the tube 5 to permit the flame 6 to enter the lower end of same. The flame 6 pro ected into the secondary lVhile one type of Bunsen burner is here shown, it is obvious that any suitable type may be employed.

The secondary tube is surrounded by an exterior casing 9 which is supported by an ornamental iron stand 10. The lower end of the casing is preferably cone-shaped as at 11 and provided with a plurality of air intake openings 12 and at the upper endwith a plurality oflontlet openings 13. The casing forms a support for a deflecting plate 14: and a register 15 of any su Bunsen burner is carried arms 15', secured near the lower end of the ornamental stand and the upper end of the burner is preferably surroundedby a guard hich is constructed to produce an orna-, mental appearance conforming with the stand 10. In operation with the gas turned on and ignited, a

0 air mixes with the flame as drawin tiorris firstproduced at the lower flame of the shape indicated at 8 will be produced, A large volume secondly by the radiating heat of the tube B. The large volume of hot air thus produced may either pass through the upper openings 13 or directly through the register 15, which may be opened or closed to direct the heat as desired. The deflecting plate 14 is provided for the purpose of deflecting the flame 8, thus preventing it from coming into direct contact with the register 15 and it furthermore causes the heat to be more evenly distributed through the top 01 the heater. The shape and size of the heater may be varied to suit different conditions and its materials and finish may be such as the experience of the manufacturer may dictate. i

I wish it understood that the same is susceptible of modification and, therefore, changes in the construction and arrangement of the several parts may be employed Without departing from the spirit of my invention as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to Patent is-- 1. In a gas heater, a burner, a combustion tube having a flared lower end terminating with an external annular shoulder and spaced above the burner, a casing insecure by Letters closing the upper end of the tube and having its lower portion contracted about the flared end of the tube and seating directly on the annular shoulder, said contracted portion being provided with a circular series of air inlet openings encircling the flared end of the tube, the upper portion of the casing having an outlet through which the gases from said tube pass intermingled with the air that enters through the series of inlet oplenings, and a support for the casing and tu e.

In combination, a Bunsen burner having a burner tube, a long vertical tube arranged abo e the burner tube, a casing inclosing the upper end of the second tube and secured to the lower end of the latter, said casing having lower intake openings and upper outlet openings, a stand supporting the casing and Bunsen burner, and a guard for the burner supporting the lower end of the casing from the stand.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

ROBERT E. CAMPBELL. WVitnesses:

LAURA JAcKsoN,, MILDRED BURNEI'I. 

